effects of cold plasma on staphylococcus aureus

Objective: to investigate the effect of cold plasma on staphylococcus aureus destruction at different treatment times. materials and methods: staphylococcus aureus was cultured on 4 plates of lb agar medium each at 1.5 × 103 cfu / ml (colony-forming unit per milliliter) and one group was selected as the control group and the other 3 groups were treated with plasma for 5, 7 and 10 minutes. they were incubated for 24 hours at 37 °c. finally, the number of colonies formed was counted. results: it was shown that treatment with cold atmospheric plasma significantly reduced bacterial colonies and in comparison to the control plate with a colony count of 1.5 × 103 cfu/ml treatment with air plasma for 10 minutes decreased the pseudomonas colony count to zero. conclusion: it was observed that the cold atmospheric plasma jet device manufactured in atomic energy organization of iran can significantly kill bacteria in a short time. increasing the duration of treatment significantly reduces bacterial colonies.